Description: LavaSoft’s AdAware is an extremely reputable program for getting rid of malicious software or files on your computer, not viruses, but advertisement programs and other annoying and borderline dangerous junk that hijacks your computer. A free version is available for noncommercial use.

Description: One of the best spyware removers on the market (rivaling AdAware), SpyBot S&D performs deep scans of your computer to find commercial junk. The new version provides a realtime scanner (which I don’t use, as it can mess with certain settings) and the ability to immunize your computer against certain threats so they can’t ever be installed. Best when used in conjunction with SpywareBlaster.